Company Analysis

Phio Pharmaceuticals Corp. (PHIO)

Nasdaq: PHIO · Pharmaceutical Preparations · King Of Prussia, PA · filing with the SEC since 2011
Grade4.0
◀ Past 1.3● Present 4.6▶ Future 5.2
4 est.

Filings

440 filings since 2017 beside 165 insider forms · Non-accelerated filer and smaller reporting company · read from EDGAR on Nov 13, 2026
Due nextNon-accelerated filer and smaller reporting company
10-K Annual report for the fiscal year ending Dec 31, 2026Non-accelerated filers and smaller reporting companies have 90 days after the fiscal year ends. by Mar 31, 2027
10-Q Quarterly report for the quarter ending Mar 31, 2027Non-accelerated filers and smaller reporting companies have 45 days after the quarter ends; quarter ends are taken to the month end. by May 15, 2027

A deadline is the latest date the SEC's rules allow for its filer category. It is not a forecast of the day the company files. Last time, the results release (8-K item 2.02) came 36 days after the quarter ended. The proxy statement was last filed Aug 14, 2026.

Filings a yearinsider forms included
6951404566588547
20192020202120222023202420252026

2026 counts to Nov 13, 2026.

Officer or director change (8-K item 5.02): 9 times in the last 36 months, the newest Sep 28, 2026.Auditor change (8-K item 4.01): 1 time in the last 36 months, the newest Apr 22, 2025.Listing warning from its exchange (8-K item 3.01): 1 time in the last 36 months, the newest Jan 26, 2024.SEC letters: 11 in the last 36 months, the newest Dec 1, 2025.
Insider forms 165

Insider forms (3, 4, 5 and 144) are counted each year but not listed here; the people and their trades are on the Ownership tab.

FiledFormWhat it is, in plain wordsPeriodAsk
Nov 5, 2026 10-Q Quarterly report Sep 30, 2026
Nov 5, 2026 8-K items 2.02, 9.01 Results released · Current report
Oct 13, 2026 8-K items 8.01, 9.01 Other event · Current report
Sep 28, 2026 S-8 Employee stock plan registration
Sep 28, 2026 8-K items 5.02, 5.07, 9.01 Officer or director change; Shareholder vote · Current report
Sep 14, 2026 8-K items 8.01, 9.01 Other event · Current report
Aug 14, 2026 ARS Annual report to shareholders Dec 31, 2025
Aug 14, 2026 DEFA14A Extra proxy material
Aug 14, 2026 DEF 14A Proxy statement Sep 28, 2026
Aug 6, 2026 8-K items 2.02, 9.01 Results released · Current report
Aug 6, 2026 10-Q Quarterly report Jun 30, 2026
Jul 21, 2026 8-K items 5.02, 8.01, 9.01 Officer or director change; Other event · Current report
May 7, 2026 10-Q Quarterly report Mar 31, 2026
May 7, 2026 8-K items 2.02, 9.01 Results released · Current report
Apr 8, 2026 424B5 Shelf offering
Apr 8, 2026 8-K items 1.01, 9.01 Major agreement signed · Current report
Mar 30, 2026 8-K item 8.01 Other event · Current report
Mar 5, 2026 10-K Annual report Dec 31, 2025
Mar 5, 2026 8-K items 2.02, 9.01 Results released · Current report
Feb 18, 2026 8-K item 5.02 Officer or director change · Current report Feb 17, 2026
Feb 17, 2026 SCHEDULE 13G/A Large holder update, amended
Feb 13, 2026 SCHEDULE 13G/A Large holder update, amended
Feb 10, 2026 8-K items 8.01, 9.01 Other event · Current report
Jan 20, 2026 8-K items 8.01, 9.01 Other event · Current report
Dec 23, 2025 8-K items 8.01, 9.01 Other event · Current report
Dec 11, 2025 SCHEDULE 13G/A Large holder update, amended
Dec 4, 2025 424B3 Shelf offering
Dec 3, 2025 EFFECT Registration effective
Dec 1, 2025 CORRESP Reply to the SEC
Nov 25, 2025 8-K items 8.01, 9.01 Other event · Current report
Nov 24, 2025 SCHEDULE 13G/A Large holder update, amended
Nov 20, 2025 S-3 Shelf registration
Nov 13, 2025 10-Q Quarterly report Sep 30, 2025
Nov 13, 2025 8-K items 2.02, 9.01 Results released · Current report
Nov 12, 2025 SCHEDULE 13G/A Large holder update, amended
Nov 12, 2025 D Private placement notice
Nov 10, 2025 SCHEDULE 13G Large holder notice
Nov 7, 2025 SCHEDULE 13G/A Large holder update, amended
Nov 6, 2025 SCHEDULE 13G/A Large holder update, amended
Nov 6, 2025 8-K items 1.01, 3.02, 8.01, 9.01 Major agreement signed; Shares sold without registration; Other event · Current report Nov 3, 2025
40 of 440 shown

Every row opens the filing on EDGAR. The plain words are the site's own for each form and each 8-K item; the complete history, insider forms included, is on EDGAR.

SI Assistanton PHIO · research, not advice